TY - JOUR
T1 - Polyaspartic acid-coated paramagnetic gadolinium oxide nanoparticles as a dual-modal t1 and t2 magnetic resonance imaging contrast agent
AU - Marasini, Shanti
AU - Yue, Huan
AU - Ghazanfari, Adibehalsadat
AU - Ho, Son Long
AU - Park, Ji Ae
AU - Kim, Soyeon
AU - Cha, Hyunsil
AU - Liu, Shuwen
AU - Tegafaw, Tirusew
AU - Ahmad, Mohammad Yaseen
AU - Al Saidi, Abdullah Khamis Ali
AU - Zhao, Dejun
AU - Liu, Ying
AU - Chae, Kwon Seok
AU - Chang, Yongmin
AU - Lee, Gang Ho
N1 - Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021/9
Y1 - 2021/9
N2 - Surface-coating polymers contribute to nanoparticle-based magnetic resonance imaging (MRI) contrast agents because they can affect the relaxometric properties of the nanoparticles. In this study, polyaspartic acid (PASA)-coated ultrasmall Gd2 O3 nanoparticles with an average particle diameter of 2.0 nm were synthesized using the one-pot polyol method. The synthesized nanoparticles exhibited r1 and r2 of 19.1 and = 53.7 s−1 mM−1, respectively, (r1 and r2 are longitudinal and transverse water–proton spin relaxivities, respectively) at 3.0 T MR field, approximately 5 and 10 times higher than those of commercial Gd-chelate contrast agents, respectively. The T1 and T2 MR images could be obtained due to an appreciable r2 /r1 ratio of 2.80, indicating their potential as a dual-modal T1 and T2 MRI contrast agent.
AB - Surface-coating polymers contribute to nanoparticle-based magnetic resonance imaging (MRI) contrast agents because they can affect the relaxometric properties of the nanoparticles. In this study, polyaspartic acid (PASA)-coated ultrasmall Gd2 O3 nanoparticles with an average particle diameter of 2.0 nm were synthesized using the one-pot polyol method. The synthesized nanoparticles exhibited r1 and r2 of 19.1 and = 53.7 s−1 mM−1, respectively, (r1 and r2 are longitudinal and transverse water–proton spin relaxivities, respectively) at 3.0 T MR field, approximately 5 and 10 times higher than those of commercial Gd-chelate contrast agents, respectively. The T1 and T2 MR images could be obtained due to an appreciable r2 /r1 ratio of 2.80, indicating their potential as a dual-modal T1 and T2 MRI contrast agent.
KW - Gadolinium oxide nanoparticle
KW - Magnetic resonance imaging
KW - Polyaspartic acid
KW - T and T dual-modal imaging
UR - http://www.scopus.com/inward/record.url?scp=85114490529&partnerID=8YFLogxK
U2 - 10.3390/app11178222
DO - 10.3390/app11178222
M3 - Article
AN - SCOPUS:85114490529
SN - 2076-3417
VL - 11
JO - Applied Sciences (Switzerland)
JF - Applied Sciences (Switzerland)
IS - 17
M1 - 8222
ER -